Hi @colinette, welcome to our forum!
I have translated your question to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
If you press and hold on an empty area of the home screen > tap on "Settings" in the bottom right corner and turn off "Enable swipe-up". Now you should have the apps icon on the home screen again.
Let me know if that helps! 
